K-ion and Na-ion storage performances of Co₃O₄–Fe₂O₃ nanoparticle-decorated super P carbon black prepared by a ball milling process

Abstract

which is comparable with the most reported anode materials for potassium-ion batteries. The obtained results broaden the range of transition metal oxide-based hybrids as potential anodes for K-ion and Na-ion batteries, and suggest that further studies of these materials with potassium and sodium are worthwhile.